{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39C-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE39C-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE39C-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39C-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE Series Zener TVS Diode, Bidirectional, 1500W Peak Pulse, 33.3V Standoff, 56.6V Clamping, DO-201AA Axial, Bulk.","salesMarkdown":"## What the 1500W peak-pulse rating means for your protection window The 1.5KE39C-B: The single-channel device handles one protected line per package. The DO-201AA (DO-27) axial leaded package is a through-hole form factor with a standard 0.042-inch lead diameter — it fits existing PCB layouts for the 1.5KE family without a footprint change. ## Obsolete — sourcing through surplus and broker channels The 1.5KE series is widely produced, so cross-references from other brands (e.g., Vishay, onsemi) exist with similar voltage and package specs — but those are not formally listed as second sources by Littelfuse.","metaTitle":"Littelfuse 1.5KE39C-B Zener TVS, 1500W, 33.3V Standoff","metaDescription":"Littelfuse 1.5KE39C-B Zener TVS diode, 1500W peak pulse, 33.3V standoff, DO-201AA. Obsolete — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"35.15V","Voltage - Clamping (Max) @ Ipp":"56.6V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"28.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE39C-B/alternatives.json"},"ai":{"faq":[{"question":"How can I order the 1.5KE39C-B or check availability?","answer":"The 1.5KE39C-B is obsolete and sourced through independent distribution."},{"question":"What is the closest pin-compatible alternative to the 1.5KE39C-B?","answer":"Other manufacturers (Vishay, onsemi) offer 1.5KE39-type bidirectional TVS diodes in the same DO-201AA package with similar voltage specs, but these are not formally listed as second sources. Confirm the voltage window and footprint match before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE39C-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE39C-B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}